LG13zd970 bios bin file motherbord 13/14/15z970 rev 1.4 bios bin file EAX67183404 ENE bios bin file 15Z970-E.AA50K 15Z970-E.AP50ML 15Z970-E.AR3NK 15Z970-E.AR3TK 15Z970-G.AA3HK 15Z970-G.AA3MK 15Z970-G.AA50K 15Z970-G.AA55J 15Z970-G.AA56K 15Z970-G.AA5BK 15Z970-G.AA5BML 8Mb bios